EP 0842408 A1 19980520 - IMAGING SYSTEM TRANSFER FUNCTION CONTROL METHOD AND APPARATUS
Title (en)
IMAGING SYSTEM TRANSFER FUNCTION CONTROL METHOD AND APPARATUS
Title (de)
METHODE UND APPARAT ZUR STEUERUNG DER ÜBERTRAGUNGSFUNKTION EINES BILDERZEUGUNGSSYSTEMS
Title (fr)
PROCEDE ET DISPOSITIF DE COMMANDE DE LA FONCTION DE TRANSFERT D'UN SYSTEME IMAGEUR
Publication
Application
Priority
- US 9612263 W 19960725
- US 50918295 A 19950731
Abstract (en)
[origin: WO9705466A1] Accurately measuring and controlling the system transfer function of an imaging system (408), by eliminating interference from aliases. An image is captured of an image primitive (406) with a uniaxial pattern, oriented at an angle (701, 702) to the primary axes of a sampling array. In order to accurately measure the system transfer function, a two-dimensional frequency representation is computed (53). The aliased components of the representation are separated from the unaliased components by translation in frequency (53) along the axis perpendicular to the axis of the image primitive (406). Accurate measurement of the system transfer function (58) makes it possible to accurately control the system transfer function.
IPC 1-7
IPC 8 full level
G01M 11/02 (2006.01); H04N 17/00 (2006.01)
CPC (source: EP US)
G01M 11/0292 (2013.01 - EP US); H04N 17/002 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9705466 A1 19970213; AU 6599796 A 19970226; AU 699424 B2 19981203; CA 2228143 A1 19970213; CA 2228143 C 20010911; DE 842408 T1 19981022; EP 0842408 A1 19980520; EP 0842408 A4 19990901; ES 2118679 T1 19981001; GR 980300039 T1 19980731; JP H11510253 A 19990907; US 5621519 A 19970415
DOCDB simple family (application)
US 9612263 W 19960725; AU 6599796 A 19960725; CA 2228143 A 19960725; DE 96925506 T 19960725; EP 96925506 A 19960725; ES 96925506 T 19960725; GR 980300039 T 19980731; JP 50775597 A 19960725; US 50918295 A 19950731